Top definition
1). It is something you say when referring to a total reject, or idiot. Normally, this is not a term one would hear in civilised conversation.

2). It can also mean no.

3). Another way of telling somebody to go away.
1). GIRL 1: "That man over there is humping a tree!"
GIRL 2: "Omg what a total siobs! I bet he has no friends."

2). BOT 1: "Can I borrow some lipstick?"
BOY 2: "Siobs! Get your own!"

3). GIRL: "What time is it?"
BOY: "Siobs off, you faggot!"
by conkers1 June 05, 2009
Mug icon

The Urban Dictionary Mug

One side has the word, one side has the definition. Microwave and dishwasher safe. Lotsa space for your liquids.

Buy the mug
2
SIOB is used in retaliation to someone being an idiot
by rcwords September 26, 2012
Mug icon

The Urban Dictionary Mug

One side has the word, one side has the definition. Microwave and dishwasher safe. Lotsa space for your liquids.

Buy the mug